Shots here are of the PIMA/ISO 12233 standard resolution
test chart (more available for comparison in our cameras database). How
to read the charts: All values are 1/100 th lines/picture height. So the
"10" value equates to 1000 lines/picture height.
"What, you're comparing it to the Coolpix 990?",
I hear you cry. Well, my logic is that the S1 Pro should be much better
because of FujiFilm's SuperCCD technology. Pixel counts are similar (Nikon
Coolpix 990 3.14 million effective, FujiFilm S1 Pro 3.07 million effective).
For reference we've shot the resolution chart at both 3040 x 2016 and
2304 x 1536.
FujiFilm S1 Pro (@ 3040 x 2016)
Nikon Coolpix 990 (@ 2048 x 1536)
FujiFilm S1 Pro (@ 2304 x 1536)
Nikon Coolpix 990 (@ 2048 x 1536)
Well there you are, interestingly the S1 Pro shows much
higher resolution than the Coolpix 990 (probably not just down to the
CCD but also the lens) but has some strange artifacts (and moiré
aliasing) visible in angular lines as blue or yellow artifacts - take
a look also at fine detail in the images in the samples galleries and
you'll see the same thing. A side effect of the SuperCCD's honeycomb design?
Measurable findings (three measurements taken for each camera):
Camera
Measurement
Absolute Res.
Extinction Res.
FujiFilm
Finepix S1 Pro
Horiz LPH
1300
1450
Vert LPH
1200
1400
5o Diagonal LPH *
1000
n/a
Nikon
Coolpix 990
Horiz LPH
900
1300
Vert LPH
900
1400
5o Diagonal LPH
900
n/a
* Visible moiré artifacts
Definition of terms:
LPH
Lines per Picture Height (to allow
for different aspect ratios the measurement is the same for horizontal
and vertical)
5o Diagonal
Lines set at 5o diagonal
Absolute Resolution
Still defined detail (below Nyquist
frequency*)
Extinction Resolution
Detail beyond camera's definition
(becomes a solid gray alias)
n/a
Not Available (above the capability
of the test chart)
n/v
Not Visible (not visible on test
results)
* Nyquist frequency defined as the highest spatial frequency where the
CCD can still faithfully record
image detail. Beyond the Nyquist frequency aliasing occurs